| 新疆和田地区烟幕变化特征及成因分析 |
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| 引用本文： | 刘海涛,刘海红,任莉莉,赵玉倩.新疆和田地区烟幕变化特征及成因分析[J].新疆气象,2015,9(1):24-31. |
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| 作者姓名： | 刘海涛 刘海红 任莉莉 赵玉倩 |
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| 作者单位： | 和田地区气象局;民丰县农业广播电视学校,民丰县农业广播电视学校,和田地区气象局,和田地区气象局 |
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| 基金项目： | 公益性行业气象科研专项(GYHY201106025)“风沙灾害对绿洲农业的影响与评估技术”;新疆气象局研究课题(201120)联合资助 |
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| 摘 要： | 运用和田地区气象、社会统计、NCEP/NCAR再分析资料,综合应用气候趋势、小波、突变、合成方法分析了1960—2010年和田地区烟幕天气的变化趋势、周期及突变特征,揭示了影响烟幕天气多发的气候及社会成因,结果发现:(1)和田地区烟幕天气呈现出递增(15.4 d/10a)的趋势,多年平均日数66 d,其代表站——和田高达123 d,烟幕天气在20世纪60年代最少、90年代增至最高峰,2000—2010年大幅减少,年烟幕日数呈单峰型,峰值在10月—次年3月的冬半年,日烟幕频数呈双峰型,峰值在20—01时和早上09—12时;(2)年烟幕日数具有稳定的准17 a振荡周期,1982年为显著突变增加年、2005年为显著突变减少年;(3)影响和田地区烟幕天气多寡的主因是人口快速增长下,冬半年长时间向空中大量排放烟尘,加之冬半年受高空浅暖高压脊和地面塔里木盆地低气压环流的控制,气层稳定、逆温易发且频率高,风速较小,烟尘不易扩散。
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| 关 键 词： | 和田地区 烟幕 气候特征 成因 |
| 收稿时间： | 2014/1/23 0:00:00 |
| 修稿时间： | 3/3/2014 12:00:00 AM |
Variation and genetic analysis for smokescreen in Hetian Region |
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| Liu Haitao,Liu Haihong,Ren Lili and Zhao Yuqian.Variation and genetic analysis for smokescreen in Hetian Region[J].Bimonthly of Xinjiang Meteorology,2015,9(1):24-31. |
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| Authors: | Liu Haitao Liu Haihong Ren Lili and Zhao Yuqian |
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| Institution: | Hetian Meteorological Bureau,Hetian,;China;Minfeng Agricultural Broadcasting and Television School;China,Minfeng Agricultural Broadcasting and Television School,Hetian Meteorological Bureau,Hetian,Hetian Meteorological Bureau,Hetian |
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| Abstract: | Using the data of meteorology , social statistics and Ncep/Ncar reanalysis in Hetian ,Comprehensive application of climate linear tendency,wavelet ,mutation and Synthetic methods to analysis the trend of smokescreen, characteristics of cycle and mutations during 1960-2010 in Hotan ,to reveal the impact of climate and social causes smoke-prone. the result shows: (1)The days of smokescreen weather show a incremental (15.4d/10a) trend in Hetian, annual average days are 66d, its representatives station - Hotan is up to 123d,the days of smokescreen weather is least in 1960s,rose to the highest peak in 1990s,reduce significantly during 2000-2010, days of annual smokescreen weather show a singlepeak pattern,Peak in halfwinter of October - next March,Days of daily smokescreen weather show a bimodal pattern,peak in evening 20-01h and morning 09-12h;(2)Annual days of smokescreen weather show a stable quasi-17a oscillation period, increasing significantly in 1982,decreaing significantly in 2005 ;(3)The main cause of affect smokescreen weather is mainly due to rapid population growth in Hetian, Significant emissions of soot into the air for a long time in halfwinter,Controling by high altitudes shallow warm ridge of high pressure and low pressure circulation in the Tarim Basin ground in halfwinter,Gas layer stability, and high-frequency inversion-prone, less wind, smoking not easy to spread. |
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| Keywords: | Hetian smokescreen climatic characteristics causes |
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